import re

from django.contrib.auth.backends import ModelBackend

from users.models import User


def jwt_response_payload_handler(token,user, request):
    #自定义ｊｗｔ认证成功返回数据
    return {
        'token':token,
        'user_id':user.id,
        'username':user.username

    }

def get_user_by_account(account):
    try:
        if re.match(r'1[3-9]\d{9}', account):
            user = User.objects.get(mobile=account)
        else:
            user=User.objects.get(username=account)
    except User.DoesNotExist:
        user=None

    return user



class UsernameMobileAuthBackend(ModelBackend):
    #自定义用户名或手机认证
    def authenticate(self,request,username=None,password=None, **kwargs):
        user=get_user_by_account(username)
        if user is not None and user.check_password(password):
            return user

